The customer app bundles communication with customers. This includes models
to record product alerts and sent emails. It also contains the views that
allow a customer to manage their data (profile information, shipping addresses,
etc.)

View that exists for legacy reasons and customisability. It commonly gets
called when the user clicks on “Account” in the navbar, and can be
overriden to determine to what sub-page the user is directed without
having to change a lot of templates.